[中學] 空間中直線
x-2 y+2
試問空間中兩直線 L_1 : ── = ── = z-4
2 4
x y+6 3-z
L_2 : ── = ── = ──
2 4 -1
是否平行?
ans:否
這邊兩直線向量皆相等相等,且也可做出共平面 2x -y =6
為什麼還是不一定會平行?
煩請各為解惑之,感謝!!
出自99竹東高中教甄
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